Hue Server Health Tests

Hue Server File Descriptors

This Hue Server health test checks that the number of file descriptors used does not rise above some percentage of the Hue Server file descriptor limit. A failure of this health test may
indicate a bug in either Hadoop or Cloudera Manager. Contact Cloudera support. This test can be configured using the File Descriptor Monitoring Thresholds Hue Server
monitoring setting.

Short Name: File Descriptors

Property Name

Description

Template Name

Default Value

Unit

File Descriptor Monitoring Thresholds

The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor
limit.

The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump
directory.

heap_dump_directory_free_space_absolute_thresholds

critical:5.36870912E9, warning:1.073741824E10

BYTES

Heap Dump Directory Free Space Monitoring Percentage Thresholds

The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump
directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Heap Dump Directory Free Space Monitoring Absolute Thresholds setting is configured.

heap_dump_directory_free_space_percentage_thresholds

critical:never, warning:never

PERCENT

Hue Server Host Health

This Hue Server health test factors in the health of the host upon which the Hue Server is running. A failure of this test means that the host running the Hue Server is experiencing some
problem. See that host's status page for more details.This test can be enabled or disabled using the Hue Server Host Health Test Hue Server monitoring setting.

The health test thresholds for monitoring of free space on the filesystem that contains this role's log
directory.

log_directory_free_space_absolute_thresholds

critical:5.36870912E9, warning:1.073741824E10

BYTES

Log Directory Free Space Monitoring Percentage Thresholds

The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory.
Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured.

log_directory_free_space_percentage_thresholds

critical:never, warning:never

PERCENT

Hue Server Process Status

This Hue Server health test checks that the Cloudera Manager Agent on the Hue Server host is heart beating correctly and that the process associated with the Hue Server role is in the
state expected by Cloudera Manager. A failure of this health test may indicate a problem with the Hue Server process, a lack of connectivity to the Cloudera Manager Agent on the Hue Server host, or a
problem with the Cloudera Manager Agent. This test can fail either because the Hue Server has crashed or because the Hue Server will not start or stop in a timely fashion. Check the Hue Server logs
for more details. If the test fails because of problems communicating with the Cloudera Manager Agent on the Hue Server host, check the status of the Cloudera Manager Agent by running /etc/init.d/cloudera-scm-agent status on the Hue Server host, or look in the Cloudera Manager Agent logs on the Hue Server host for more details. This test can be enabled or disabled
using the Hue Server Process Health Test Hue Server monitoring setting.

Short Name: Process Status

Property Name

Description

Template Name

Default Value

Unit

Hue Server Process Health Test

Enables the health test that the Hue Server's process state is consistent with the role configuration

hue_server_scm_health_enabled

true

no unit

Hue Server Swap Memory Usage

This Hue Server health test checks the amount of swap memory in use by the role. A failure of this health test may indicate that your machine is overloaded. This test can be configured
using the Process Swap Memory Thresholds monitoring settings.

Short Name: Swap Memory Usage

Property Name

Description

Template Name

Default Value

Unit

Process Swap Memory Thresholds

The health test thresholds on the swap memory usage of the process.

process_swap_memory_thresholds

critical:never, warning:any

BYTES

Hue Server Unexpected Exits

This Hue Server health test checks that the Hue Server has not recently exited unexpectedly. The test returns "Bad" health if the number of unexpected exits goes above a critical
threshold. For example, if this test is configured with a critical threshold of 1, this test would return "Good" health if there have been no unexpected exits recently. If there has been 1 or more
unexpected exits recently, this test would return "Bad" health. This test can be configured using the Unexpected Exits Thresholds and Unexpected
Exits Monitoring Period Hue Server monitoring settings.

Short Name: Unexpected Exits

Property Name

Description

Template Name

Default Value

Unit

Unexpected Exits Monitoring Period

The period to review when computing unexpected exits.

unexpected_exits_window

5

MINUTES

Unexpected Exits Thresholds

The health test thresholds for unexpected exits encountered within a recent period specified by the
unexpected_exits_window configuration for the role.

If this documentation includes code, including but not limited to, code examples, Cloudera makes this available to you under the terms of the Apache License, Version 2.0, including any required
notices. A copy of the Apache License Version 2.0 can be found here.